Today, the hardest part is to get to said first interview, because we are all flooded with fake resumes. Incomprensible amounts. So what you have to do is not send blind resumes, but get a warm intro from someone with a connection to the company that vouch that interviewing you will not be a total waste of time. Networks have never been more important.

Now, if on interview you pass rate is low, it's hard to say what you are doing wrong.